Method for handling iminocarboxylic acid salt
US6063302A · kind A · utility
4Cited by
1References
8Claims
0Family size
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Key dates
| Filing date | Oct 18, 1995 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Oct 18, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C229/24
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An aqueous iminocarboxylic acid salt solution composition the iminocarboxylic acid salt of which has a structure of the formula (II): ##STR1## wherein R is a hydrogen atom or a hydroxyl group and Y is a sodium atom, a potassium atom, or an ammonium group, contains an aspartic acid backbone moiety whose molar ratio of the isomers, i.e. D form/L form, is in the range of 1/0 to 0.7/0.3 or D form/L form, in the range of 0/1 to 0.3/0.7, and accounts for a concentration in the range of 40 to 70% by weight and a method for handling the composition while keeping the pH value thereof kept in the range of 7 to 12.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.